We propose a novel framework for monitoring and evaluating user travel activity in Virtual Reality (VR), in real time. Using this framework, we examined how users progressed in mastering two common travel techniques: ...
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We present Gestalt, a development environment designed to support the process of applying machine learning. While traditional programming environments focus on source code, we explicitly support both code and data. Ge...
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ISBN:
(纸本)9781605588438
We present Gestalt, a development environment designed to support the process of applying machine learning. While traditional programming environments focus on source code, we explicitly support both code and data. Gestalt allows developers to implement a classification pipeline, analyze data as it moves through that pipeline, and easily transition between implementation and analysis. An experiment shows this significantly improves the ability of developers to find and fix bugs in machine learning systems. Our discussion of Gestalt and our experimental observations provide new insight into general-purpose support for the machine learning process.
Screen-less wearable devices allow for the smallest form factor and thus the maximum mobility. However, current screen-less devices only support buttons and gestures. Pointing is not supported because users have nothi...
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ISBN:
(纸本)9781605588438
Screen-less wearable devices allow for the smallest form factor and thus the maximum mobility. However, current screen-less devices only support buttons and gestures. Pointing is not supported because users have nothing to point at. However, we challenge the notion that spatial interaction requires a screen and propose a method for bringing spatial interaction to screen-less devices. We present Imaginary interfaces, screen-less devices that allow users to perform spatial interaction with empty hands and without visual feedback. Unlike projection-based solutions, such as Sixth Sense, all visual "feedback" takes place in the user's imagination. users define the origin of an imaginary space by forming an L-shaped coordinate cross with their non-dominant hand. users then point and draw with their dominant hand in the resulting space. With three user studies we investigate the question: To what extent can users interact spatially with a userinterface that exists only in their imagination? Participants created simple drawings, annotated existing drawings, and pointed at locations described in imaginary space. Our findings suggest that users' visual short-term memory can, in part, replace the feedback conventionally displayed on a screen.
The following paper deals with quality properties that extend the traditional understanding of usability with its focus on the pragmatic aspects like efficiency and effectiveness on task performance in the context of ...
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ISBN:
(纸本)9781450300834
The following paper deals with quality properties that extend the traditional understanding of usability with its focus on the pragmatic aspects like efficiency and effectiveness on task performance in the context of business applications. The contribution of the approach is tow folded. First: We show how psychological theories about motivation and creativity can bridge the gap between business goals and users' goals and attitude with interaction design. We introduce an engineering approach that allows to deliberately design for fun/joy in a given business context. Second: We show how to reuse the experience from former or other projects by describing the interaction design as pattern candidates. This approach has been applied successfully many times and we elaborate it in a case study conducted for one of our clients, including an empirical evaluation that shows an improved working behavior and increased user acceptance of the software.
This paper describes two novel abstractions that help software engineers work in developing regions to align social and technical factors when building communication systems. The abstractions extend two concepts famil...
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ISBN:
(纸本)9781450304733
This paper describes two novel abstractions that help software engineers work in developing regions to align social and technical factors when building communication systems. The abstractions extend two concepts familiar to engineers of computer networks and applications: the Open Systems Interconnect stack for design, and Quality of Service for evaluation. The novel nature of the abstractions lies in how they help cultivate awareness of socio-cultural and technical issues when designing and evaluating communication bridges in the field. Advantages of the abstractions are that they can be understood easily by software engineers, they aid communication with beneficiaries, and can therefore facilitate collaboration. The paper makes an argument for these socially aware abstractions, describes the abstractions in detail, provides examples of how we used the new abstractions in the field and then gives practical guidelines for how to use them. The simple nature of the new abstractions can help software engineers and end-users to work together to produce useful information technology based communication systems for people in developing regions.
To create collections, like music playlists from personal media libraries, users today typically do one of two things. They either manually select items one-by-one, which can be time consuming, or they use an example-...
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ISBN:
(纸本)9781605588438
To create collections, like music playlists from personal media libraries, users today typically do one of two things. They either manually select items one-by-one, which can be time consuming, or they use an example-based recommendation system to automatically generate a collection. While such automatic engines are convenient, they offer the user limited control over how items are selected. Based on prior research and our own observations of existing practices, we propose a semi-automatic interface for creating collections that combines automatic suggestions with manual refinement tools. Our system includes a keyword query interface for specifying high-level collection preferences (e.g., "some rock, no Madonna, lots of U2,") as well as three example-based collection refinement techniques: 1) a suggestion widget for adding new items in-place in the context of the collection;2) a mechanism for exploring alternatives for one or more collection items;and 3) a two-pane linked interface that helps users browse their libraries based on any selected collection item. We demonstrate our approach with two applications. SongSelect helps users create music playlists, and PhotoSelect helps users select photos for sharing. Initial user feedback is positive and confirms the need for semi-automated tools that give users control over automatically created collections.
With the increasing popularity of the World Wide Web, end-user applications are moving from the desktop to the browser. More and more applications that we have come to know as desktop applications are now making their...
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The use of workflow is a complicated process and non-specialist user need a visualization platform for workflow application. In this paper, a graphical modeling platform for workflow design is proposed. This platform ...
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The development of applications for mobile devices is becoming increasingly popular, with manufacturers struggling to support different programming environments and embedding libraries on their devices. In this pursui...
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Nowadays several Computer-Aided software Engineering environments exploit Model-Driven Engineering (MDE) techniques in order to generate a single userinterface for a given computing platform or multi-platform user in...
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